Buick 2005 LeSabre Owner's Manual page 178

Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance between the right
and the left speakers, push and release AUDIO until
BAL appears on the display. Then turn the AUDIO knob
to move the sound toward the right or the left speakers.
A bar graph with indicators will appear on the display.
To adjust the fade between the front and the rear
speakers, push and release AUDIO until FADE appears
on the display. Then turn the AUDIO knob to move
the sound toward the front or the rear speakers. A bar
graph with indicators will appear on the display.
To adjust balance or fade to the middle position, select
BAL or FADE. Then push and hold AUDIO for more
than two seconds until you hear a beep. The indicator
will be centered on the display.
To adjust both tone controls and both speaker controls
to the middle position, end out of audio mode by
waiting five seconds without making any changes. Then
push and hold AUDIO for more than two seconds
until you hear a beep. ALL CENTERED will appear on
the display.
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Finding a Program Type (PTY) Station
To select and find a desired PTY perform
the following:
1. Press P-TYP to activate program type select mode.
P-TYPE will appear on the display.
2. Turn the AUDIO knob to select a PTY.
3. Once the desired PTY is displayed, press either
SEEK arrow to select the PTY and to take you to
the PTY's first station.
4. To go to another station within that PTY and the
PTY is displayed, press either SEEK arrow once.
If the PTY is not displayed, press either SEEK
arrow twice to display the PTY and then to go to
another station.
5. Press P-TYP to exit program type select mode.
If PTY times out and is no longer on the display,
go back to Step 1.
If both PTY and TRAF are on, the radio will search for
the selected PTY and traffic announcements.